methyl 4-(chlorosulfonyl)-5-methyl-2-furoate CAS 344308-91-4
| CAS No. | 344308-91-4 |
| Molecular Formula | C7H7ClO5S |
| Molecular Weight | 238.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
methyl 4-(chlorosulfonyl)-5-methyl-2-furoate (CAS 344308-91-4) is a high-purity analytical reference standard with the molecular formula C7H7ClO5S and a molecular weight of 238.65 g/mol.
Structurally, methyl 4-(chlorosulfonyl)-5-methyl-2-furoate (C7H7ClO5S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 238.65 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H7ClO5S |
| Molecular Weight | 238.65 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related methyl Standards
- 4-(Chlorosulfonyl)-2,5-dimethylfuran-3-carboxylic acid (CAS 1016689-45-4)
- Ethyl 2-(chlorosulfonyl)-1H-imidazole-5-carboxylate (CAS 1073187-02-6)
- methyl 3-[(chlorosulfonyl)methyl]-2-furoate (CAS 1114823-97-0)
- methyl 5-chlorosulfonyl-2-methyl-pyrazole-3-carboxylate (CAS 1122567-32-1)
- Methyl 5-(chlorosulfonyl)-1-methyl-1h-pyrazole-4-carboxylate (CAS 1151512-24-1)
- Ethyl 3-(chlorosulfonyl)-1H-pyrazole-4-carboxylate (CAS 115703-22-5)
- Methyl 5-(chlorosulfonyl)-1-methyl-1h-pyrazole-3-carboxylate (CAS 1245823-37-3)
- Methyl 5-((chlorosulfonyl)methyl)furan-2-carboxylate (CAS 1248127-92-5)
Recommended Standards
- Ethyl 5-(chlorosulfonyl)furan-3-carboxylate (CAS 256373-91-8)
- Methyl 5-(chlorosulfonyl)-2-methyl-3-furoate (CAS 306936-35-6)
- Ethyl 5-(chlorosulfonyl)furan-2-carboxylate (CAS 87299-59-0)
- 4-Ethoxy-3-fluorobenzene-1-sulfonyl chloride (CAS 1016756-58-3)
- 1,4-Bis((3,5-dimethyl-1H-pyrazol-1-yl)methyl)benzene (CAS 172606-22-3)
- Perfluorophenyl (((9H-fluoren-9-yl)methoxy)carbonyl)-D-glutaminate (CAS 200622-33-9)
- [2-Amino-1-(4-fluorophenyl)ethyl]dimethylamine (CAS 842954-71-6)
- 5H-Dibenzo[c,e]azepine-5,7(6H)-dione (CAS 3864-08-2)
- (4-((tert-Butoxycarbonyl)amino)-3-methoxyphenyl)boronicacid (CAS 669713-95-5)
- (1-Imidazo[2,1-b][1,3]thiazol-6-ylethyl)aminedihydrochloride (CAS 1177148-05-8)
- 4-Amino-3,5-diiodobenzoic acid (CAS 2122-61-4)
- 2-(cyclopropylamino)-3-[3-(trifluoromethyl)-1H-pyrazol-1-yl]propanoic acid (CAS 1291287-24-5)
- 2-Bromo-6-chloro-1H-benzo[d]imidazole (CAS 1388031-41-1)
- Human glucagon CRS (CAS 9007-92-5)
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